Mass Air Flow: What You Need to Know About Possible Sensor Problems
Mass Air Flow senor (MAFS) problems are common sources of frustration for car owners. An MAFS is the device that calculates the air intake required for the engine to run smoothly, and when it malfunctions, the engine performance can suffer. Common symptoms of MAFS problems include poor acceleration, stalling and misfiring, with the issue becoming more pronounced in colder temperatures. Malfunctioning of the MAFS can be attributed to a variety of causes, ranging from contamination to poor installation.
MAFS consist of two main components: a casing which contains the sensing unit and an electronic circuit with a hot film. When the correct air-to-fuel ratio is achieved, the MAFS will activate the engine control unit to reduce or cease the air supply. Contamination of the MAFS’ sensors or detectors can affect performance significantly, resulting in the likes of hard starting, stalling, and an overly inefficient engine.
Before being too quick to make conclusions about the root of a problem, it is important to rule out whether potential causes do not lie elsewhere. For example, other components such as fuel re-circulation valve, induction pipe and ventilation valves may be faulty, creating a similar set of issues as those of a malfunctioning MAFS. Therefore, it is best to seek expert diagnosis from a member of the auto trade to identify the exact cause of any MAFS related problems.
One of the main causes of MAFS problems is contamination by oil or dirt particles as the device is particularly sensitive. Frequent cleaning of the air filter and regular replacement of the same can help to keep the MAFS in optimal condition. Accompanying the performance of a car with MAFS problems is the lighting of the “service engine” and “check engine” lights. These indicators on your car’s control panel show that the emission system is experiencing difficulty and that the advice of a broker and/or auto mechanic would be wise.
In conclusion, a malfunctioning mass air flow sensor leads to a host of issues with car performance and should be attended to as soon as possible. If the cause of the problem is found to be with the MAFS, then it may be necessary to have it replaced with a new one. If not, then a car owner should investigate other potential causes, such as issues with the fuel re-circulation valve, induction pipe, and ventilation valves. Regular maintenance of the air filter and regular replacement should help to avoid MAFS problems, while regular check-ups may be beneficial to identify any underlying issues.